Tool for applying and removing nipples from radiators and the like



June 3, 1952 c, BAKER Y 2,598,877

TOOL FOR APPLYING AND REMOVING NIPPLES FROM RADIA'EORS 15H!) THE LIKE Filed July 1, 1949 INVENTOR.

C/M'flfs H. Bax/5R FIC v g" Patented June 3, 1952 STATES arana QFFi-ICE TOOL 'FOR APPLYING AND REMOVINGNIP- 'PLES FROM RADIATOR/S AND THE LIKE Charles H. Baker, Paterson, N. J.

Application July 1, 1949, Serial No. 102,692

The present. invention relates to. improvements intools iorapplying and removing nipples, such as union-nipples of radiators, and more, particularly relates. to. the improvement'of tools :of the type illustrated and describe-din United States Letters Patent, No. 773,462rctober 25, 1-904.

In the aforementioned patent, there is. shown a tool generally comprising a wrench receiving portion and a stem havin longitudinalchannels onthe outer surface. The stem is adapted t be inserted into the union-nipple of a radiator or the-like when =the-valve or other fitting is unpledand thechannelsare adapted o r i n al lu s. f rmed withinthe ore f e n p e whereby, up nrotat nofth tool, t e n r em y be screwed into a threaded opening of the radiator orlmay be unsc ew d h i m,

'While-such tools are suitable for applying new nipples. or removin nipples which are relatively new, these tools are inefiZective and inoperative in caseswherethe nipples have been in use for a z onsid ratle 4 period and th g e n a corroded.

Accordingly, an object of the present invention is to provide a tool which is effective to apply, remove and reapply either new nipples formed with or withoutlugs orv nipples in which the. lugs have corroded.v

Another object is to provide such a tool which is. simple, rugged and economical in construction.

A urther objec s o prov su a o wh is practica n e i en n op t 'Qther and further objects of "the invention will bemanifes'tfrom the following description and the accompanying'drawing. V

In accordance with the invention, the foregoing objects are accomplished by providing a tool comprising an exteriorly threaded portion havingan annular face at one side thereof ,tooth means on-the face, and a wrench receiving por-,- tion at-the other side of the-threaded portion. The tool is also formed with a nipple engaging stem, adjacent the. face; for-med with channels or the like. for receiving theinternallugs of a'nipple. The: tool may be constructed for accommodating two standard sizes of nipples .most commonly used. To. accomplish this, .the tool has .a central wrenchreceiving portion, anexteriorly threaded portion at each end of the wrenchreceiving portion,..and: a nipple engaging stem extending .Olltr.

wardlyffromieach;threaded portion. Thethreaded zsportions-are of different diameters and-the stems rare of 'difierentdiameters and of :a diameter-1m relationtoxthe. diameter of its respectiveadjacent threaded-portion.

4 Claims. (01, 81-9-71) In using the tool a threaded portion is screwed into. the union or coupling nut of the nipple so. that. the tooth means firmly engage or .bite into the. seat of thetnipple whereby the tool, upon rotation thereof, is adapted to apply or remove the; nipple by causing the same to rotate therewith. In the event the nipple still hasits internal lugs the stem portion may be utilized it r a one or in conjunction with the tooth ,meansfor effect-ingrotation of the nipple, and in the latter case, the lugs hold the tool non-rotatable relative to the nipple during manipulation of the coupling 'nutfor engaging the tooth means into the seat. ofthey nipple.

T e tooth means ma he pro id by moun ing a plural y (if-hardened s ee p n apertures formedin the threaded portion of the tool and. these pins hav p inted nds facing utwardly. vifil ern te y, th tooth m a s ma comprise a plurality of milled or ground points.

In the drawing Fig. .1; is a fragmentary elevational View of a tool in acco d nc w h the inve t o :Fig, 2 is; an end view of the left-hand end of the ool o F g- 1.;

'Fig, 3 is an end view of the-right-hand end of th ool Q Fig- -Fi;g. -l is a fragmentary elevational view of a radiator having a union-nipple adapted to be applied orremoved by the tool in accordance with the, v t on Fig. 5 is an enlarged sectional view of the nipple and a portion of the tool shown dotted lines in operative engagement therewith; and

Fig. dis a fragmentary elevational view of one end of another embodiment of the invention.

Referring to the drawing indetail and more particularly to Figs. 1 to 3 thereof, there is shown a tool In generally comprising a central portion [2, exteriorly threaded portions [4 and I 6 at each end of thecentral portion having undercut or inwardly bevelled annular outer faces 18 and 20, respectively (Figs. 2 and 3), a plurality of teeth 22-011 each of the faces, and union-nipple engaging stems. and 26 extending outwardly from thefaces I 8 and 20, respectively.

The central portion I2 is polygonal in crosssection, for example square as shown in dotted lines in Figs. 2 and 3, but may be of any other shape to facilitateengage ment.thereof loyfa conventional wrench, as will become apparent here-.

inafter.

- Thethrea e p tio s 14 nd t re d f erent diamet rs, ach being d mens nal for coop ration with th thr ads of a union or coupl of forming a plurality of circumferentially spaced apertures 2| in the faces I8 and of the threaded portions l4 and [6, respectively, which extend outwardly parallel to the longitudinal axis of the tool with their outer ends terminating adjacent the outer surface of the stems 24 and 26, and by mounting and securing in these apertures hardened steel pins 23 having pointed end edges forming the teeth 22 which incline toward the longitudinal axis of the tool and serving as tooth means extending outwardly of the faces 18 and 20 adjacent the stems. These pins seat against the bottoms of the apertures 2|. An angularly disposed aperture 25 is provided for each of the pin apertures to facilitate removal of worn pins, which may be knocked out of their respective apertures by inserting a tool in the corresponding aperture 25 and tapping the tool with a hammer. The stems 24 and 26 are of different diameters and of diameters in relation to the diameter of their adjacent threaded portions l4 and I6, respectively. That is, the diameters of the stems 24 and 26 are such that they may be inserted into nipples associated respectively with couplings or unions adapted to receive the threaded portions l4 and [6, respectively. Each of the stems has a pair of longitudinal diametrically opposite channels 28 on the outer surface for receiving internal lugs formed in union-nipples.

In Fig. 4, a portion of a radiator 30 is shown having a nipple 3-2 threadedly secured in a wall thereof, and a valve 34 or other fitting is detachably secured to the nipple by a union or coupling 36, associated with the nipple to constitute a fitting generally known as a union-nipple. 1

As illustrated more particularly in Fig. 5, the nipple 32 comprises an exteriorly threaded end 38, an enlarged seat at the other end, and internal lugs 42 in the bore thereof extending longitudinally from the threaded end towards the seat end. The union or coupling 36 is in the form of an interiorly threaded ring having an inwardly extending annular flange 44 for engaging the rear face of the seat 40, which is formed with a central opening through which the threaded end of the nipple extends.

In order to thread the nipple 32 into the radiator wall, the stem of the tool corresponding in size to the nipple is inserted into the bore thereof with the channels 28 positioned to receive the lugs 42 of the nipple. A wrench is applied to the tool portion 12 for effecting rotation of tool and securement of the nipple to the radiator, whereby the union or coupling 36 is positioned between the wall of the radiator and the enlarged seat 40 of the nipple to facilitate securement of the valve 34 thereto. When it is desired to remove the nipple from the radiator, the valve is uncoupled, the tool is again inserted as just described and the wrench is turned to rotate the tool in a direction to unscrew the nipple. a

In the event the lugs 42 have corroded to an extent whereby they are not sufficiently strong or suitably shaped to cooperate with the channels 28 to effect unscrewing of the nipple, the coupling nut 36 is screwed on the threaded portion of the tool which is held non-rotatable relative to the nipple until the teeth 22 firmly engage or bite into the seat of the nipple. This may be effected by holding the tool with one wrench, and applying another wrench to the coupling to turn the same. It will be noted that th lugs 42 engaging in the channels 28 will cooperate to hold the tool non-rotatable relative to the nipple during such manipulation of the coupling nut. With the coupling so applied and the teeth firmly engaged with, or embedded into, the nipple seat, a wrench may be applied to the portion I2 of the tool to turn the same and cause the nipple to be unscrewed.

If desired, nipples with corroded lugs can be reapplied to the radiator by following the foregoing procedure. Likewise, the tool in accordance with the invention may be utilized for applying and removing nipples formed without internal lugs.

In Fig. 6, a modified tool lfia is shown which differs essentially from the tool I0 described in connection with Figs. 1 to 3, in that, the annular undercut or inwardly bevelled faces [8 and 2B are formed with milled or ground points or teeth 22a instead of being provided with pins.

The exteriorly threaded portions l4 and l6 in each form may be secured to the stems 26 by any suitable means, such for example, as the pins 46 shown in Fig. 6.

It is to be understood that the annular faces 18 and 2|], in each embodiment, may be bevelled to correspond with the bevelled face on the nipple, as shown in the drawing, or may be fiat if desired.

From the foregoing description, it will be seen that the present invention provides an improved tool for removing or applying union-nipples and the like which is simple and economical in construction and practical and effective in operation. The tool is adapted to cooperate with nipples formed with or without internal lugs or nipples having corroded lugs which do not af ford a grip. The tool is rugged in construction and can readily withstand such rough usag to which it may normally be subjected.

While the tool has been described as having nipple removing and applying means at each end it will be appreciated that the tool could comprise a wrench receiving portion at one end'and a single nipple removing and applying means at the other end.

While I have illustrated and described preferred embodiments of my invention, it is to be understood that I do not wish to b limited to those precise forms, as obviously various changes and modifications may be made therein without departing from the spirit and scope of the invention.

What I claim is:

1. A tool of the class described comprising a body member having an exteriorly threaded portion provided with. an annular face at one side thereof, said threaded portion having a plurality of bores formed in the said face thereof and extending substantially parallel to the longitudinal axis of the tool and each opening at one end at said face, a pin secured in each of said bores and formed with a pointed end extending slightly beyond said face, said body member having apertures formed in the surface thereof and communicating with the other ends of said bores whereby to receive an implement for effecting removal of the pins for replacement, a unionnipple engaging stem extending co-axially from said portion adjacent said face, and a cross-sectionally polygonal wrench receiving portion said body member having inclined apertures formed in the surface thereof adjacent said threaded portion and in communication with the other ends of said bores whereby to receive an implement for effecting removal of the pins for replacement, a union-nipple engaging stem extending co-axially from said portion adjacent said face and having longitudinal channels on th outer surface thereof for receiving lugs in the nipple, and an integral cross-sectionally polygonal wrench receiving portion formed on the body member at the other side of said threaded portion.

3. A tool of the class described comprising an exteriorly threaded portion having an annular face at one side thereof, a pluralityof teeth on said face, a union-nipple engaging stem extending coaxially from said portion adjacent said face and having longitudinal channels on the outer surface for receiving lugs formed in the nipple, and a cross-sectionally polygonal wrench receiv- 6 ing portion at the other side of said threaded portion.

4. A tool of the class described comprising an exteriorly threaded portion having an annular inwardly bevelled face at one side thereof, a plurality of teeth projecting slightly from said face, a union-nipple engaging stem extending coaxially from said portion adjacent said face and having longitudinal channels on the outer surface thereof for receiving lugs formed in the nipple, and an integral cross-sectionally polygonal wrench receiving portion at the other side of said threaded portion.

CHARLES H. BAKER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 216,023 Crane June 3, 1879 619,553 Fox Feb. 14, 1899 773,462 Benton Oct. 25, 1904 817,695 Dukerschien et al. Apr. 10, 1906 1,048,178 Kollermeyer Dec. 24, 1912 1,665,643 Schmitt Apr. 10, 1928 1,813,424 Roche July 7, 1931 2,281,164 Maling Apr. 28, 1942 FOREIGN PATENTS Number Country Date 568,227 Great Britain Mar. 23, 1945 

